The longtime GOP lawmaker, who left the House in 1993, said his other reason for calling for the president to be removed was because Trump "welcomed help and influence" from Russians during his campaign.

Coleman said that the Constitution’s “high crimes and misdemeanors” clauses defining impeachable misconduct by a president is often interpreted as too narrow.

“I think there is some confusion that it has to be a crime to be impeachable,” he explained. “You know, abuse of power, lying to the American people were two grounds for Nixon’s articles of impeachment before he resigned. ... It’s not a crime to the lie to the American people, but if you do it every day 10 or 20 or 50 times, then you’re getting into the area where you should be impeached.”

"I think there is some confusion that it has to be a crime to be impeachable. Abuse of power, lying to the American people were two grounds for Nixon's articles of impeachment before he resigned." - Tom Coleman, a former Republican lawmaker calling for Pres. Trump's impeachment pic.twitter.com/FGAwDxdkft